Pochade vs Chrooma Colors

**Pochade is free to try with included sample images. Unlock importing your own photos with a single one-time purchase of $9.99. No subscription, no ads, yours forever.** Pochade is a focused reference prep app for painters. Import a photo, study its values, compose your framing, and plan your grid — all before brush hits canvas. No AI generation. No social features. No clutter. Just the reference tools painters actually need, designed for iPad. STUDY VALUES WITH CLARITY The hardest part of painting from a photo is seeing the value structure. Pochade simplifies your reference into 2–9 tonal steps so you can map out your lights and darks before you start mixing paint. A live luminance histogram shows your overall tonal distribution. Select any value bucket to isolate it with a mask overlay, making it easy to see exactly where each tone falls in your composition. COMPOSE YOUR FRAMING Crop non-destructively with preset aspect ratios (1:1, 3:2, 4:3, 5:4) or use the original framing. Your source image is never altered — adjust your composition as many times as you need. OVERLAY A PLANNING GRID Add a customizable grid overlay to plan your drawing transfer. Choose your row and column count (2–12 each), pick a color that reads well against your image, and adjust line thickness. The grid respects your crop, so what you see is what you'll paint. TOGGLE GRAYSCALE Switch to grayscale to strip away color and focus purely on value relationships — the foundation of every strong painting. BUILT FOR HOW PAINTERS WORK Your sessions save automatically as you adjust tools. Come back tomorrow or next week and pick up right where you left off. Undo and redo are built in, up to 50 steps deep. A session library keeps your references organized with thumbnail previews and tool state badges so you can see at a glance what you've done with each image. Zen mode hides all controls so you can evaluate your reference without distraction. Pan, zoom, and rotate to inspect details. BUILT NATIVELY FOR iPAD AND iPHONE Pochade is built natively for iPad and iPhone. Everything runs on-device. Your photos and sessions stay on your iPad, nothing is uploaded anywhere. Privacy Policy: [link] Terms of Use: [link]

Play with colors. See what you've been missing. Chrooma uses real color science, not RGB shortcuts. Extract a palette from any photo and understand immediately why those colors work together: which harmonies are present, where they sit in Munsell space, what temperature balance they create. Or mix your own colors with spectral calculations that model how pigments actually behave. PHOTO ANALYSIS Pull a palette from any photo and understand it immediately: • Unlimited extraction from camera or library • Harmony detection, temperature mapping, balance analysis • Dedicated fullscreen modal with one-tap export • See what Pro analysis unlocks before you buy EXPLORE — 23 Interactive Challenges Put your color vision to the test for real. Sort Munsell value steps, identify simultaneous contrasts, reconstruct palettes from memory. Scoring uses CIEDE2000 perceptual difference. You'll discover where your perception is sharp and where it isn't. COMPOSE — 56 Generative Styles Turn any palette into shareable art. Geometric tiles, flow fields, Voronoi cells, aurora gradients, Albers-style overlays. Export as PNG or animated MP4. EXPLAIN — Color Theory You Can See 10 interactive pages: Itten's 7 contrasts, Munsell notation, Goethe's color theory, 460+ color names with etymology and history, gamut visualization, harmony rules, light physics. Not a textbook. Every concept is something you interact with. MIX — Paint Recipes with Spectral Physics Kubelka-Munk theory models how light scatters through pigment layers. Blue + yellow produces a muted olive, not bright green, because that's what real paint does. Spectral reflectance curves from 24 real pigments (Golden Heavy Body Acrylics, measured with a spectrophotometer). Separate engines for paint, light, and colorant. COLOR COMPARE Pick two colors and see exactly how they relate. Perceptual distance (ΔE₀₀), WCAG contrast ratio, harmony type, temperature delta, Itten contrasts. MORE • Gradient comparison across 4 color spaces (HSL, Lab, OKLCh, sRGB) • Color of the Day with a new curated color every morning • Weekly palettes tied to seasons and weather • Your Color Imprint, a personality profile that evolves monthly • Palette management with unlimited palettes • Works offline, no account required WHO USES CHROOMA? Painters who want to understand why their mixes don't turn out as expected. Art students studying Itten and Munsell. If you're decorating a room and need to pull a palette from a photo, it does that. And if you just want more than a hex picker, the challenges alone are worth it. PRICING Free to explore. One purchase unlocks everything. No subscription, no ads, ever. PRIVACY No account. Your palettes stay on your device. Optional anonymous analytics, adjustable in Settings.